Windows 10 Upgrade Issue

I've been trying to upgrade my PC to Win 10 Pro but after about 2/3's way into it, I see a message stating that it's Reverting back to the previous Windows.
 
I tried to keep an eye on it to catch the point where this happens so I can see what needs to be fixed, but haven't been able to catch it (tried upgrading 3 times and the process is a bit long). When I initially run the upgrade program, it does a diagnostic checkup on my system in which everything shows to be fine.
 
Is there anyway to find out what's causing it to Revert back (without sitting at the screen for a few hours)?
 
 

fireberd
If it doesn't tell you why, there may be no way to find out. 
Did it tell you any software was not compatible? 
 
Your PC hardware is almost the same as mine. 
 
Did it do that more than once?  If only once, give it a shot again.  Worst case you will have to do a "clean" install of Win 10 (which means reinstalling everything).
 
Someone on the Win 10 forum may be able to help more. 
www.tenforums.com

Sorry, I should've been more clear in my OP.....the PC I'm trying to install Win 10 is our home PC which currently has Win 8 (the DAW in my sig is running Win 10 without any issues).  
 
Yeah, last night was round 3 in trying this upgrade and I missed the spot when it started Reverting.
 
I do have the Win 8 Install disk handy, but was hoping to keep all the settings the same. I suppose that could be my last resort......and do a clean install.
 
I'll check the ten forums as well......Thanks Jack.

I saw your post on the tenforums.  Thinking back, I had that problem on one PC with a "preview" (beta) version of Win 10.  With that one I wound up having to do a clean install of Win 10 preview, I couldn't get around the not finishing and reverting.   As that was a preview version (in a dual boot system) on a separate hard drive with nothing except Keyboard and Mouse plugged in, and nothing installed except an early Sonar Platinum version I didn't really lose much by doing a clean install. 
 
Also, I had a client's PC (a Dell Inspiron desktop) to upgrade to Win 10.  It had Win 8.0 on it and never had any updates.  The free Win 10 is (or at least was at the time) only for Win 7 and Win 8.1.  Thus I had to do all the initial Win 8.0 updates before it would upgrade to Win 8.1.  After I got it to 8.1, I was able to upgrade it to Win 10.

fireberd
I saw your post on the tenforums.  Thinking back, I had that problem on one PC with a "preview" (beta) version of Win 10.  With that one I wound up having to do a clean install of Win 10 preview, I couldn't get around the not finishing and reverting.   As that was a preview version (in a dual boot system) on a separate hard drive with nothing except Keyboard and Mouse plugged in, and nothing installed except an early Sonar Platinum version I didn't really lose much by doing a clean install. 
 
Also, I had a client's PC (a Dell Inspiron desktop) to upgrade to Win 10.  It had Win 8.0 on it and never had any updates.  The free Win 10 is (or at least was at the time) only for Win 7 and Win 8.1.  Thus I had to do all the initial Win 8.0 updates before it would upgrade to Win 8.1.  After I got it to 8.1, I was able to upgrade it to Win 10.

I did do all the Win 8 updates, but can't remember if it went to Win 8.1 (will check that tonight). If troubleshooting this is going to be a long process, I'll just do a clean install with Win 8 and go from there. Hopefully, Microsoft will accept me trying to register Win 8.  

DrLumen
When I tried to snag win10, it failed horribly.
 
However, I think the issue may have been that I had the boot and bios changes locked out in the bios. I  didn't realize it until later when trying to install an update back to Win7. Perhaps this may be something you want to check.
 
I'm out of time now but, at this point, I would not consider trying to upgrade again.

I don't recall doing that in BIOS.....then again, this is my first DAW and is 9 yrs. old (still with the original parts except for 1 stick of RAM).
 
Regarding upgrading to Win 10, Microsoft is still ok with it (if you're still wanting to).

Mesh
I don't recall doing that in BIOS.....then again, this is my first DAW and is 9 yrs. old (still with the original parts except for 1 stick of RAM).
 
Regarding upgrading to Win 10, Microsoft is still ok with it (if you're still wanting to).

It's a fairly new feature (2-3 years?) that I had forgotten about. It is supposed to stop viruses and rootkits from making changes to the MBR or injecting changes into the bios.
 
Thanks for the info about the upgrade but I have a really bad attitude toward MS right now... Part of it was my fault for not keeping my system backups up to date. But for the upgrade to fail so cryptically and horribly I don't even want to think about going through that nightmare again any time soon.

What sort of program incompatibilities and issues have you guys come up against after doing the windows 10 free upgrade? Lost plugins? Sonar not working? Etc.